The linear polarization of the binary HD 47129 has been observed in the B filter on 60 nights. The polarization has a variable component which is synchronous with the 14.4-day binary period. This intrinsic component reaches a maximum at quadratures and may be explained by scattering from a corotating region of extrastellar material lying between the stars. A best value of 71° is found for the orbital inclination.
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